Die-rolled blank



Nov., w, i924. lil@ w. P. WITHEROW DIE ROLLED BLANK Filed Sept. 9, 1922 157 C2/Wd,

I Row, a'citizen of the United States, resid` To all whom t may f1- carrabstares? fit-516.069. f

l WILLIAM r. wri'nnn'ow, or'ri'rrssufnemArmNsYLvmtmfassic-Non sama comm, 'or-navman isamngrrnimsaavama a conraa'riqib PENNSYLVANIA; f.

'presentan BLANK.

Aapiiaamiflaiea setenta 9,' ieee. "serial mi. esatto. f

Be it known that I, WILLIAM ing at Pittsburgh, in the county 'of Agilegheny and State of Pennsylvanimhaveinf.. vented a new4 and useful Improvement in?. f 'Die-Rolled Blanks, of which the following is a full, clear, and exact descri tion. v

The present invention relates roadly. to blanks produced by the action of llplls 0n a billet or leader, and. more particularly rolls I to a blank produced by the action of -die Atthe present timeit Vfrequenti happens that the upper and lower rol in 'a roll housing being used for die frolling become circumferentially displaced one w'th` ."respe'ct to the. other,-or that one fof ther ,lls

blank having slightly dierent eharacte istics on op osite sides of the center line there` of. If t e blank being produced is one becomes slightly more worn, or slightl' diferently machined, than the other lrc l. It will be apparent that this results ina r led which is adapted to have Ysuccessive linisliing operations performedjthereon, theseir-A regularities frequently result in'serious de A lj feats, as the blanks are not alwaysinished -with the same sideup 'or down.

g operation.: Uniformity in registration, dimensions or .wearing of the die rolls. This. invention also provides means for accurately gaging the length during the rolling operation, of die rolled blanks. v

In the accompanying drawings there is shown, for purposes of illustration only,

' certain forms of blanks' reduced in accordance with tins-.present invention, ,it being J from the s irit of the invention fof my bro er claims. 1.

understood that the drawings do not define the limits of the invention, as changes may.

be made in the form and arrangement illustrated in the drawings without departing or scope producti'onbf. e e p l" distances'between di erent points may be y y In the.drawings,+ f

v;*ll!"gure lv's: a side elevation of a portion .of' ajconnectedseries of axles for motor vehicles produced by die'rollin l.

iniand. y .A A., igure "is a' transverse. sectional View throughs. section of the die rolls for `producin lthe'article illustrated in Figure 2.-

F.igure 2 is a-similarview o a connected: seriesQf cani` shafts produced'by diel roll-` Re erringmore particularly to the draw- 'l ings, there is illustrated iii Figure l a portion of a die rolled blank particularl adapted to be formed into a :trenta-x10y or automotive vehicles. The blankas illustrated comprises an intermediate body" portion `2 which ma be generally of channel'shaped cross section, having a Hash 3 therefrom. At. diderent pointsl t projecting e e roughoutthe length of the blank the cross'. section thereof eithergradually or abruptly varies :of metal orthe formation of the in order to 'insurethe necessary dis esitionished article. lt is essential that the distanceebe- 2`tween such.v oints be uniorm',-s.and in order to Apermit t ese distances to be accurately ga ed'duringthe' rolling operation l pro# vida suitable indiciae on the dash indicia-may be formed by providing depresi. sions orprojectionsin the cooperating surfacesl of the die' rolls adjacent the impressions therein, vas will be apparent. `As shown? in .Figure l, 'this indicia may be in the :form of short lines b vineens of which the laccuratel determined bymeans ot calipers or the l' e, Asi the flash is adapted tev be' trimmed away vat some subsequent stage, it will be ap arent that the formation o any desired indicia thereon does not impair the nished product. Where a series of die rolled blanks are'produced in Aend-to-end `relationship as a continuous piece of metal,

it will be apparent that the indicia en the Hash maybe so disposed as to indicate the line of severance between successive blanks. In Figure 2 there is illustrated a portion of a connected series of vcam shafts for motor vehicles, these blanks being also die rolled and having suitable spaced enlargements `5-ada ted by suitable nishing'operations to be o'med into'the shape of actuating cams. The flash 6 provided during the ,8,0 `ThisY vio die rolling operation is also utilized to carry indicia 7 by meansof which the line of severance may be determined or the distances between diderent points accurately determined. `lln addition` and in order to enable the blanks to be subsequently finished with the sameside up at all times, one side of the Hash may be provided with a modified form of' indicia, here illustrated as comprising enlargements 8, by means dit which it is possible to easily determine which side of thev blank was produced by a certain roll. During the subsequent operations it will be obvious that the blank is always positioned With the enlargements 8 in a definite posi# tion whereby the die rolled blanks are uniormly finished. ,l

'lhe advantages of the present invention arise :from the provision of a rolled blank having a dash which is utilized to carry -indicia which insures the formation of uniform products without impairing the quality 'of such products.

ll claim: v

l. As anarticle @manufacture7 a rolled blank having a dash, and indicia on said Hash at spaced points, substantially as described.

ramona,

2, As an article of manufacture, a die rolled blank havingja dash, and indicia'on said Hash at spaced points throughout the length of the blank, substantially as described;

3., As an article of manufacture, a die rolled blank having similar upper and lower surfaces and an .intermediate dash,-and indicia on said dash indicating the top' and bottom of the fblank, substantially as described.

4:. As an article oit" manufacture, a die rolled blank adapted to have subsequent operations performed thereon, said blank formed with indicia thereon at spaced points in the same plane, substantially as described.

5. As an article of manufacture, a die rolled blank having a Hash throughout the major portion" of the length oie the blank adapted tobe trimmed away during the production ot the linished article9 said dash carrying indicia at spaced points-throughout the length thereof, substantially as de- 5U scribed.`

lin testimony whereof il have hereunto set my hando j v l WMAM l?. Wl'llltllERtll/V. 

